Apparatus for conveying and cooling ore.



N0 827,502. PATENTED JULY 31 H. F. CAMPBELL, DECD.

J. L. CAMPBELL, LXLGUTRIX. APPARATUS FOR CONVEYING AND COOLING ORE.APPLIGATIN FILED Diso. 14. 1905.

QAM w INVENTD Www-5.555

TED STATES PATENT FFT l JEANNETTE' L. CAMPBELL, 'or MELROSEMASSACHUSETTS, EXECUraiX or HENRYAF. CAMPBELL, DECEASED.4

APPARATUS FOR CONVEYING AND COOLING ORE.

ferruginous ore and the like directly from the furnace to elevated binsand to cool the same 'to a predetermined degree While in transit, so

that the ore may at the learliest possible moment be'ready for treatmentby a mag-` netic separator.

The mventlon consists, primarily, of a conlductor and bloweror fan whichforces/therein through a nozzle al current of air, the conductor havinga contraction in its diameter' less than the diameter of the\said nozzleand located beyond the same..

' The invention also consists incertain features oi-construction, whichare more speciically hereinafter described and claimed.

The inventor and others have described a complete apparatus of similarcharacter in an.

plication :filed December 11, 1903, Serial 184,846, reference to whichis hereby made for a full descri tion of the apparatus to which theinvention relates, as in the drawings have been shown only such portionsfand modifications thereof as are neces- -sary to illustrate theparticular invention herein described and claimed.

portion of the conductor and one of the water-jackets.'

Referring to the drawings, is a receivinghopper of any convenient shapeand of any suitable material. v i

' 11 represents metal covers hinged at 54 to the brackets 55, which arecast on the hopper.

Specification of Letters Patent.

Application led December 14, 1905. Serial No. 291.723.

Patented .1' u1y 31, 1906.

At the throat of the hopper is an openin having a horizontal metal plate68, iitted an adapted to slide therein to regulate the flow of thematerial from the hopper.

. 13 is a conductor consisting of a metal pipe of suitable diameter andcomposed of sections bolted together or secured in any Wellknown manner.The casting 57 of the conductor 13 may be the ordinary isection, butpreferably is a curved portion of pipe commonly called a ooseneck andhas a branchl cast integral t erewith into which is inserted and tightlyfits the nozzle 31 of the blower 14. This nozzle extends beyond thethroat of the hop er 10 into the conductor 13, so as to avoi thetendency of the airblast to cause the ore to be forced back out of thehopper. Atl the point 44 beyond the mouth of the nozzle 31 the conductoris contracted to a diameter less than the diameter .of the nozzle, theconductor gradually eX- panding both before and after said contractionto the general diameter ofthe conductor and assumin the form of a doubletruncated cone. By ecreasing the diameter of the conductor in this waythe full'efect of the airblast is used in the best manner to produce asuction which overcomes any'tenden'cy of the 'dust and fumes of the oreby reaction to es-D cape back-through the hopper.

28 is a supplypipe for cold water for the purpose of in]ect1n waterdirectly into the cated contents of t e ore' at 59. t.

60 is a nozzle having perforations 27 therein for the urpose of causinga spray of water to be disc arged into the ore.

' 59 is a branch of the conductor 13 and is screw-threaded on the insidetoreceive the screw-threaded end of the nozzle 60.

The pipe 28 is provided with the cock 29,

having an index-pointer and a scale 61 toindicate the degree of openingof the pipe 28.

In Fig. 2 is shown in detail one of the waterjackets, of which there mabe anydesired number and which surroun and inclose portions .of theconductor 13. 17 and 21 are nuts which constitute the heads of thewater-jacket 14 and are tted to the screwthread upon the outside of theconductor 13. They are connected to the water-jacket`14 by means of therings 16 and 20, which have internal screw threads fitting thescrewthreads upon the heads 17 21 and u on the ends of the water-jacket14. 19 an 23 are the purpose of flanges upon the conductor for j,uniting two sections of the conductor.

` is sufficient.

lock-nuts between Which and the heads of the Water-jacket are suitablepackings 18 and 22, Which' serve to form Water-tight joints. 24 is asupply-pipe, and 25 is a Waste ipe for the Water-jacket 14. The'Water-coc 26 (shown in Fig. 2) is for the purpose of regulating thelsupply of Water to the Water-jacket.

32 and 33 are screw-threaded collars or nuts iitting the externalscrew-thread of the conductor13. These nuts 32 land 33 serve The saidnuts are bolted to ether in the ordinary manner of joining the of pipe.It is necessary to em loy the said nuts instead lof hanged ends of t epi e in order that they may be. removed toa low the head 17 and thelock-nut 19 to be first aplied to the conductor. 34 and 35 are simiarscrew-threaded collars or nuts vused for the same purpose as 32 and 33.

The method of operation of the apparatus when used for conveying andcooling ore isas follows: The speed of the fan or blower 14 is regulatedso as to'create a blast of air of.

sufficient force to carryxthe-ore throughthe conductor. Ordinarily'afour-ounce current The covers 11 areopened soas to allow the admissionof a streaml of ore of sufficient volume to keep the hopper practicallyfull. The ore in a pulverized and heated state is then delivered intothe ho er from the furnace The ore descen 1s om the hop er and entersthe conductor 13 in the path o the air-blast, by which it is carried tothe'dust chambers and bins or whatever receptacle is used at the up eror discharge end of the conductor. s' the' ore passesthe point where thepi e 28 dischar es into theconduetor Water in t e form of a e spray ismingled with the ore. The flow is regulated by the cock 29 and gage 30.It is unnecessary to employla spray, as the Water comin in contact withthe hot ore is almost imme iately converted into steam and'is carriedalong with the ore paliticles, air, and` With special reference to ores,it is not to be understood that the invention is to. be limited to thisclass of material; but there are also to be 'included-all ,pulverizedmaterials susceptible of being conducted and elevated in the mannerdescribed.

What is claimed, and desired to be secured by Letters Patent, is*

1. In an apparatus for conveying ore and like materials, the combinationof a conductor, means for discharging an airblast.

anges of two sections* ductor having a contraction in the diameter lessthan the diameter of said nozzle and at a point beyond Where thematerial is discharged i-nto the same, and said conductor being expandedimmediately beyond said contraction.

2. j In an apparatus for conveying ore and like materials, thecombination of a conductor, means for discharging an air blast through anozzle into said conductor, means for discharging the material into saidconductorat a point beyond where the air-blast is admitted, saidconductor havinga contraction in its diameter less than the diameter ofthe said nozzle and at a point beyondwhere the material is dischargedinto said conductor, and said conductor being expanded immediatelybeyond said contraction.

3. In an apparatus for conveying ore and like'materials, the combinationofac'onductor provided Withia gooseneck at the receiving end, a hopperarranged to discharge therein, an-ozzleentering`v said goioseneclgymeans for discharging an air-blast into said conduct'or through saidnozzle, said conductor havinga contraction in its diameter less than thediameter of said nozzle and at a ointbeyond Where the air-blast isdischarge therein, and

said conductor being expanded` inmediately beyond said contraction.

4. In anapparatus for conveying and cooling ore, a conductorymeans fordlscharging an air-blast through a nozzle into Saidi conduetor, meansvfor discharging the-material into said conductor ata point .beyondwherethe air-blast is admitted, said conductor having a contraction in itsdiameter lessthan the diameter of said nozzle, and at a point beyondWhere the material is discharged into said conductor, and said conductorbeing expanded immediately beyond .said contraction, combined with unitseach consisting .cfa lcentral conductor, a jacket inclosing the same,means for causing a circulation of water :through said jacket, saidcentral conductor having its ends provided withcouplin s, said jacketconsisting of a 'cylinder an circular nuts forming. heads thereofconnected together by annular screw-threaded rings.

5. In an apparatusfor oonveyin and `Cooling ore a conductor provided Wita gooseneck at the receiving end, a hopper arranged to .dischargetherein,- a nozzle entering said gooseneck, 'means for dischargin anairblast into said conductor through said nozzle, said conductor.havingfa contraction in its diameter less than the diameter of saidnozzle and at a oint beyond where the air-blast is discharged) therein,and said conductor being expanded immediately beyond said contraction,combined with units each consisting of a central conductor, a jacketinclosing the same, means for causing a circulation of IOO v lings, andsaid jacket consisting of a cylinder and circularnuts forming headsthereof connected together by annular screw-threaded rings.

6. In an apparatus for conveying ore and like materials, the combinationof a conductor,means for discharging an air-blast through a nozzle intosaid conductor, means for discharging material into said conductorandinto the path of said air-blast, said conductor having a contractionin its diameter less than the diameter` of said nozzle and at a pointbeyond Where the material is discharged into the same, and saidconductor being expanded immediately beyond said contraction, combinedwith a feed-pipe discharging Water into said conductor and means for reulating and registering the supply of Water t erein.

7. In an apparatus for' conveying ore and like materials, thecombination of a conductor,means for discharging an air-blast through anozzle into said conductor, means for discharging material into saidconductor and into the path of said air-blast, said conductor having acontraction in its diameter less than thediameter of said nozzle and ata point beyond Where the material is discharged into the same, and saidconductor being expanded immediately beyond said contraction, combinedwith a feed-pipe discharging Water into said conductor, said feed-pipebeing provided with a cock and gage for regulating and registering theiiow of Water through the same.

8. In an apparatus 'for conveying and cooling ore, a conductor, meansfor discharging an air-blast through a nozzle into said conductor, meansfor discharging the material into said conductor at a point beyond Wherethe air-blast is admitted, said conductor having a contraction initsdiameter less than the diameter of said nozzle, and at a pointbeyondWhere the material is discharged into said conductor, and said conductorbeing eX- panded immediately beyond said contraction, combined with aWater-jacket surround-4 ing said conductor, means for causing acirculation of Water through said jacket, said jacket consisting .of acylinder and circular nuts forming the heads thereof connected togetherby annular screw-threaded rings; a feed-pipe discharging Water into saidconductor, and means for regulating and registering the supply of Watertherein.

In testimony whereof I have hereunto set my hand, in presence of twosubscribing Witnesses, this 13th day of December, 1905.

LIEANNET'IE L. CAMPBELL, Eecutm of Henry F. Campbell, deceased.

Witnesses:

EVERETT N; CURTIS. ELMER L. BRIGGS.

